#include <liblustre.h>
#endif
-#include <linux/lustre_net.h>
-#include <linux/obd.h>
-#include <linux/obd_lov.h>
-#include <linux/obd_class.h>
-#include <linux/obd_support.h>
+#include <lustre_net.h>
+#include <obd.h>
+#include <obd_lov.h>
+#include <obd_class.h>
+#include <obd_support.h>
#include <lustre/lustre_user.h>
#include "lov_internal.h"
{
struct lov_ost_data_v1 *lod;
int i;
-
- CDEBUG(level, "objid "LPX64", magic 0x%08X, pattern %#X\n",
+ CDEBUG(level, "objid "LPX64", magic 0x%08x, pattern %#x\n",
le64_to_cpu(lmm->lmm_object_id), le32_to_cpu(lmm->lmm_magic),
le32_to_cpu(lmm->lmm_pattern));
CDEBUG(level,"stripe_size %u, stripe_count %u\n",
le64_to_cpu(lod->l_object_id));
}
+void lov_dump_lmm_join(int level, struct lov_mds_md_join *lmmj)
+{
+
+ CDEBUG(level, "objid "LPX64", magic 0x%08X, pattern %#X\n",
+ le64_to_cpu(lmmj->lmmj_md.lmm_object_id),
+ le32_to_cpu(lmmj->lmmj_md.lmm_magic),
+ le32_to_cpu(lmmj->lmmj_md.lmm_pattern));
+ CDEBUG(level,"stripe_size %u, stripe_count %u extent_count %u \n",
+ le32_to_cpu(lmmj->lmmj_md.lmm_stripe_size),
+ le32_to_cpu(lmmj->lmmj_md.lmm_stripe_count),
+ le32_to_cpu(lmmj->lmmj_extent_count));
+}
+
#define LMM_ASSERT(test) \
do { \
if (!(test)) lov_dump_lmm(D_ERROR, lmm); \
for (i = 0, loi = lsm->lsm_oinfo; i < stripe_count; i++, loi++) {
/* XXX LOV STACKING call down to osc_packmd() to do packing */
- LASSERT(loi->loi_id);
+ LASSERTF(loi->loi_id, "lmm_oid "LPU64" stripe %u/%u idx %u\n",
+ lmm->lmm_object_id, i, stripe_count, loi->loi_ost_idx);
lmm->lmm_objects[i].l_object_id = cpu_to_le64(loi->loi_id);
lmm->lmm_objects[i].l_object_gr = cpu_to_le64(loi->loi_gr);
lmm->lmm_objects[i].l_ost_gen = cpu_to_le32(loi->loi_ost_gen);
RETURN(lmm_size);
}
+/* Find the max stripecount we should use */
int lov_get_stripecnt(struct lov_obd *lov, int stripe_count)
{
if (!stripe_count)
stripe_count = lov->desc.ld_default_stripe_count;
- if (!stripe_count || stripe_count > lov->desc.ld_active_tgt_count)
+ if (stripe_count > lov->desc.ld_active_tgt_count)
stripe_count = lov->desc.ld_active_tgt_count;
+ if (!stripe_count)
+ stripe_count = 1;
+ /* for now, we limit the stripe count directly, when bug 4424 is
+ * fixed this needs to be somewhat dynamic based on whether ext3
+ * can handle larger EA sizes. */
+ if (stripe_count > LOV_MAX_STRIPE_COUNT)
+ stripe_count = LOV_MAX_STRIPE_COUNT;
return stripe_count;
}
-static int lov_verify_lmm_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes,
- int *stripe_count)
-{
- if (lmm_bytes < sizeof(*lmm)) {
- CERROR("lov_mds_md too small: %d, need at least %d\n",
- lmm_bytes, (int)sizeof(*lmm));
- return -EINVAL;
- }
-
- if (lmm->lmm_magic != le32_to_cpu(LOV_MAGIC_V1)) {
- CERROR("bad disk LOV MAGIC: 0x%08X\n",
- le32_to_cpu(*(__u32 *)lmm));
- return -EINVAL;
- }
-
- *stripe_count = le32_to_cpu(lmm->lmm_stripe_count);
-
- if (*stripe_count == 0) {
- CERROR("bad stripe count %d\n", *stripe_count);
- lov_dump_lmm_v1(D_WARNING, lmm);
- return -EINVAL;
- }
-
- if (lmm_bytes < lov_mds_md_v1_size(*stripe_count)) {
- CERROR("LOV EA too small: %d, need %d\n",
- lmm_bytes, lov_mds_md_v1_size(*stripe_count));
- lov_dump_lmm_v1(D_WARNING, lmm);
- return -EINVAL;
- }
-
- if (lmm->lmm_object_id == 0) {
- CERROR("zero object id\n");
- lov_dump_lmm_v1(D_WARNING, lmm);
- return -EINVAL;
- }
-
- if (lmm->lmm_pattern != cpu_to_le32(LOV_PATTERN_RAID0)) {
- CERROR("bad striping pattern\n");
- lov_dump_lmm_v1(D_WARNING, lmm);
- return -EINVAL;
- }
-
- if (lmm->lmm_stripe_size == 0 ||
- (__u64)le32_to_cpu(lmm->lmm_stripe_size) * *stripe_count > ~0UL) {
- CERROR("bad stripe size %u\n",
- le32_to_cpu(lmm->lmm_stripe_size));
- lov_dump_lmm_v1(D_WARNING, lmm);
- return -EINVAL;
- }
-
- return 0;
-}
static int lov_verify_lmm(void *lmm, int lmm_bytes, int *stripe_count)
{
- switch (le32_to_cpu(*(__u32 *)lmm)) {
- case LOV_MAGIC_V1:
- return lov_verify_lmm_v1(lmm, lmm_bytes, stripe_count);
- default:
- CERROR("bad disk LOV MAGIC: 0x%08X\n",
+ int rc;
+
+ if (lsm_op_find(le32_to_cpu(*(__u32 *)lmm)) == NULL) {
+ CERROR("bad disk LOV MAGIC: 0x%08X; dumping V1 LMM:\n",
le32_to_cpu(*(__u32 *)lmm));
+ lov_dump_lmm_v1(D_WARNING, lmm);
return -EINVAL;
}
+ rc = lsm_op_find(le32_to_cpu(*(__u32 *)lmm))->lsm_lmm_verify(lmm,
+ lmm_bytes, stripe_count);
+ return rc;
}
-int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count, int pattern)
+int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count,
+ int pattern, int magic)
{
int lsm_size = lov_stripe_md_size(stripe_count);
struct lov_oinfo *loi;
int i;
+ ENTRY;
+
+ CDEBUG(D_INFO, "alloc lsm, stripe_count %d, lsm_size %d\n",
+ stripe_count, lsm_size);
OBD_ALLOC(*lsmp, lsm_size);
- if (!*lsmp)
- return -ENOMEM;
+ if (!*lsmp) {
+ CERROR("can not allocate lsmp lsm_size %d stripe_count %d\n",
+ lsm_size, stripe_count);
+ RETURN(-ENOMEM);
+ }
- (*lsmp)->lsm_magic = LOV_MAGIC;
+ spin_lock_init(&(*lsmp)->lsm_lock);
+ (*lsmp)->lsm_magic = magic;
(*lsmp)->lsm_stripe_count = stripe_count;
(*lsmp)->lsm_maxbytes = LUSTRE_STRIPE_MAXBYTES * stripe_count;
- (*lsmp)->lsm_xfersize = PTLRPC_MAX_BRW_SIZE * stripe_count;
(*lsmp)->lsm_pattern = pattern;
(*lsmp)->lsm_oinfo[0].loi_ost_idx = ~0;
for (i = 0, loi = (*lsmp)->lsm_oinfo; i < stripe_count; i++, loi++)
loi_init(loi);
- return lsm_size;
+ RETURN(lsm_size);
}
void lov_free_memmd(struct lov_stripe_md **lsmp)
{
- OBD_FREE(*lsmp, lov_stripe_md_size((*lsmp)->lsm_stripe_count));
- *lsmp = NULL;
-}
+ struct lov_stripe_md *lsm = *lsmp;
-int lov_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
- struct lov_mds_md_v1 *lmm)
-{
- struct lov_oinfo *loi;
- int i;
-
- lsm->lsm_object_id = le64_to_cpu(lmm->lmm_object_id);
- lsm->lsm_object_gr = le64_to_cpu(lmm->lmm_object_gr);
- lsm->lsm_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
- lsm->lsm_pattern = le32_to_cpu(lmm->lmm_pattern);
- lsm->lsm_xfersize = lsm->lsm_stripe_size * lsm->lsm_stripe_count;
-
- for (i = 0, loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++) {
- /* XXX LOV STACKING call down to osc_unpackmd() */
- loi->loi_id = le64_to_cpu(lmm->lmm_objects[i].l_object_id);
- loi->loi_gr = le64_to_cpu(lmm->lmm_objects[i].l_object_gr);
- loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
- loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
- if (loi->loi_ost_idx > lov->desc.ld_tgt_count) {
- CERROR("OST index %d more than OST count %d\n",
- loi->loi_ost_idx, lov->desc.ld_tgt_count);
- lov_dump_lmm_v1(D_WARNING, lmm);
- return -EINVAL;
- }
- loi++;
- }
+ LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
+ lsm_op_find(lsm->lsm_magic)->lsm_free(lsm);
- return 0;
+ *lsmp = NULL;
}
+
/* Unpack LOV object metadata from disk storage. It is packed in LE byte
* order and is opaque to the networking layer.
*/
-int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
+int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
struct lov_mds_md *lmm, int lmm_bytes)
{
struct obd_device *obd = class_exp2obd(exp);
struct lov_obd *lov = &obd->u.lov;
int rc = 0, stripe_count, lsm_size;
+ __u32 magic;
ENTRY;
/* If passed an MDS struct use values from there, otherwise defaults */
rc = lov_verify_lmm(lmm, lmm_bytes, &stripe_count);
if (rc)
RETURN(rc);
+ magic = le32_to_cpu(lmm->lmm_magic);
} else {
stripe_count = lov_get_stripecnt(lov, 0);
+ magic = LOV_MAGIC;
}
/* If we aren't passed an lsmp struct, we just want the size */
RETURN(0);
}
- lsm_size = lov_alloc_memmd(lsmp, stripe_count, LOV_PATTERN_RAID0);
+ lsm_size = lov_alloc_memmd(lsmp, stripe_count, LOV_PATTERN_RAID0,
+ magic);
if (lsm_size < 0)
RETURN(lsm_size);
if (!lmm)
RETURN(lsm_size);
- switch (le32_to_cpu(lmm->lmm_magic)) {
- case LOV_MAGIC_V1:
- rc = lov_unpackmd_v1(lov, *lsmp, lmm);
- break;
- }
-
+ LASSERT(lsm_op_find(magic) != NULL);
+ rc = lsm_op_find(magic)->lsm_unpackmd(lov, *lsmp, lmm);
if (rc) {
lov_free_memmd(lsmp);
RETURN(rc);
RETURN(-EFAULT);
if (lum.lmm_magic != LOV_USER_MAGIC) {
- CDEBUG(D_IOCTL, "bad userland LOV MAGIC: %#08x != %#08x\n",
- lum.lmm_magic, LOV_USER_MAGIC);
- RETURN(-EINVAL);
+ if (lum.lmm_magic == __swab32(LOV_USER_MAGIC)) {
+ lustre_swab_lov_user_md(&lum);
+ } else {
+ CDEBUG(D_IOCTL, "bad userland LOV MAGIC:"
+ " %#08x != %#08x\n",
+ lum.lmm_magic, LOV_USER_MAGIC);
+ RETURN(-EINVAL);
+ }
}
if (lum.lmm_pattern == 0) {
RETURN(-EINVAL);
}
- if (lum.lmm_stripe_size & (PAGE_SIZE - 1)) {
- CDEBUG(D_IOCTL, "stripe size %u not multiple of %lu\n",
- lum.lmm_stripe_size, PAGE_SIZE);
- RETURN(-EINVAL);
+ /* 64kB is the largest common page size we see (ia64), and matches the
+ * check in lfs */
+ if (lum.lmm_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
+ CDEBUG(D_IOCTL, "stripe size %u not multiple of %u, fixing\n",
+ lum.lmm_stripe_size, LOV_MIN_STRIPE_SIZE);
+ lum.lmm_stripe_size = LOV_MIN_STRIPE_SIZE;
}
if ((lum.lmm_stripe_offset >= lov->desc.ld_active_tgt_count) &&
RETURN(-EINVAL);
}
- rc = lov_alloc_memmd(lsmp, stripe_count, lum.lmm_pattern);
+ rc = lov_alloc_memmd(lsmp, stripe_count, lum.lmm_pattern, LOV_MAGIC);
if (rc < 0)
RETURN(rc);
(*lsmp)->lsm_oinfo[0].loi_ost_idx = lum.lmm_stripe_offset;
(*lsmp)->lsm_stripe_size = lum.lmm_stripe_size;
- (*lsmp)->lsm_xfersize = lum.lmm_stripe_size * stripe_count;
RETURN(0);
}
struct lov_obd *lov = &exp->exp_obd->u.lov;
obd_id last_id = 0;
+ ENTRY;
for (i = 0; i < lump->lmm_stripe_count; i++) {
__u32 len = sizeof(last_id);
- oexp = lov->tgts[lump->lmm_objects[i].l_ost_idx].ltd_exp;
+ oexp = lov->lov_tgts[lump->lmm_objects[i].l_ost_idx]->ltd_exp;
rc = obd_get_info(oexp, strlen("last_id"), "last_id",
&len, &last_id);
if (rc)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff